Home / 2,986.17-4,478.64-1,671.23

Finding the Fourth Proportional to 2,986.17, 4,478.64 and 1,671.23

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Solution

The fourth proportional to 2,986.17, 4,478.64 and 1,671.23 is: 2,506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.17 : 4,478.64 = 1,671.23 : x
  2. Step 2: Convert to fraction form
    2,986.17/4,478.64 = 1,671.23/x
  3. Step 3: Cross multiply
    2,986.17x = 4,478.64 × 1,671.23
  4. Step 4: Simplify right side
    2,986.17x = 7,484,851.86
  5. Step 5: Solve for x
    x = 7,484,851.86/2,986.17
  6. Step 6: Final answer
    x = 2,506.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.